1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.preferences.projection;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import java.awt.BorderLayout;
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7 | import java.awt.GridBagConstraints;
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8 | import java.awt.GridBagLayout;
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9 | import java.awt.Insets;
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10 | import java.awt.event.ActionListener;
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11 | import java.util.Arrays;
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12 | import java.util.Collection;
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13 | import java.util.Collections;
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14 | import java.util.List;
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15 |
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16 | import javax.swing.JButton;
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17 | import javax.swing.JComponent;
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18 | import javax.swing.JLabel;
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19 | import javax.swing.JPanel;
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20 |
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21 | import org.openstreetmap.josm.data.projection.CustomProjection;
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22 | import org.openstreetmap.josm.data.projection.Projection;
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23 | import org.openstreetmap.josm.data.projection.ProjectionConfigurationException;
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24 | import org.openstreetmap.josm.data.projection.Projections;
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25 | import org.openstreetmap.josm.gui.ExtendedDialog;
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26 | import org.openstreetmap.josm.gui.widgets.AbstractTextComponentValidator;
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27 | import org.openstreetmap.josm.gui.widgets.HistoryComboBox;
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28 | import org.openstreetmap.josm.gui.widgets.HtmlPanel;
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29 | import org.openstreetmap.josm.tools.GBC;
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30 | import org.openstreetmap.josm.tools.ImageProvider;
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31 | import org.openstreetmap.josm.tools.Logging;
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32 | import org.openstreetmap.josm.tools.Utils;
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33 |
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34 | /**
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35 | * ProjectionChoice where a CRS can be defined using various parameters.
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36 | * <p>
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37 | * The configuration string mimics the syntax of the PROJ.4 project and should
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38 | * be mostly compatible.
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39 | * @see CustomProjection
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40 | */
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41 | public class CustomProjectionChoice extends AbstractProjectionChoice implements SubPrefsOptions {
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42 |
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43 | private String pref;
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44 |
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45 | /**
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46 | * Constructs a new {@code CustomProjectionChoice}.
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47 | */
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48 | public CustomProjectionChoice() {
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49 | super(tr("Custom Projection"), /* NO-ICON */ "core:custom");
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50 | }
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51 |
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52 | private static class PreferencePanel extends JPanel {
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53 |
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54 | private HistoryComboBox cbInput;
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55 |
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56 | PreferencePanel(String initialText, ActionListener listener) {
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57 | build(initialText, listener);
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58 | }
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59 |
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60 | private void build(String initialText, final ActionListener listener) {
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61 | cbInput = new HistoryComboBox();
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62 | cbInput.getEditorComponent().setColumns(30);
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63 | List<String> samples = Arrays.asList(
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64 | "+proj=lonlat +ellps=WGS84 +datum=WGS84 +bounds=-180,-90,180,90",
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65 | "+proj=tmerc +lat_0=0 +lon_0=9 +k_0=1 +x_0=3500000 +y_0=0 +ellps=bessel +nadgrids=BETA2007.gsb");
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66 | cbInput.getModel().prefs().load("projection.custom.value.history", samples);
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67 | cbInput.setText(initialText == null ? "" : initialText);
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68 |
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69 | final HtmlPanel errorsPanel = new HtmlPanel();
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70 | errorsPanel.setVisible(false);
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71 | final JLabel valStatus = new JLabel();
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72 | valStatus.setVisible(false);
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73 |
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74 | final AbstractTextComponentValidator val = new AbstractTextComponentValidator(cbInput.getEditorComponent(), false, false, false) {
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75 |
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76 | private String error;
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77 |
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78 | @Override
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79 | public void validate() {
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80 | if (!isValid()) {
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81 | feedbackInvalid(tr("Invalid projection configuration: {0}", error));
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82 | } else {
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83 | feedbackValid(tr("Projection configuration is valid."));
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84 | }
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85 | listener.actionPerformed(null);
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86 | }
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87 |
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88 | @Override
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89 | public boolean isValid() {
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90 | try {
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91 | CustomProjection test = new CustomProjection();
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92 | test.update(cbInput.getEditorComponent().getText());
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93 | } catch (ProjectionConfigurationException ex) {
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94 | Logging.warn(ex);
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95 | error = ex.getMessage();
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96 | valStatus.setIcon(ImageProvider.get("data", "error"));
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97 | valStatus.setVisible(true);
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98 | errorsPanel.setText(error);
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99 | errorsPanel.setVisible(true);
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100 | return false;
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101 | }
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102 | errorsPanel.setVisible(false);
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103 | valStatus.setIcon(ImageProvider.get("misc", "green_check"));
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104 | valStatus.setVisible(true);
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105 | return true;
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106 | }
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107 | };
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108 |
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109 | JButton btnCheck = new JButton(tr("Validate"));
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110 | btnCheck.addActionListener(e -> val.validate());
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111 | btnCheck.setLayout(new BorderLayout());
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112 | btnCheck.setMargin(new Insets(-1, 0, -1, 0));
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113 |
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114 | JButton btnInfo = new JButton(tr("Parameter information..."));
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115 | btnInfo.addActionListener(e -> {
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116 | CustomProjectionChoice.ParameterInfoDialog dlg = new CustomProjectionChoice.ParameterInfoDialog();
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117 | dlg.showDialog();
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118 | dlg.toFront();
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119 | });
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120 |
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121 | this.setLayout(new GridBagLayout());
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122 | JPanel p2 = new JPanel(new GridBagLayout());
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123 | p2.add(cbInput, GBC.std().fill(GridBagConstraints.HORIZONTAL).insets(0, 20, 5, 5));
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124 | p2.add(btnCheck, GBC.eol().insets(0, 20, 0, 5));
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125 | this.add(p2, GBC.eol().fill(GridBagConstraints.HORIZONTAL));
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126 | p2 = new JPanel(new GridBagLayout());
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127 | p2.add(valStatus, GBC.std().anchor(GridBagConstraints.WEST).weight(0.0001, 0));
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128 | p2.add(errorsPanel, GBC.eol().fill(GridBagConstraints.HORIZONTAL));
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129 | this.add(p2, GBC.eol().fill(GridBagConstraints.HORIZONTAL));
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130 | p2 = new JPanel(new GridBagLayout());
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131 | p2.add(btnInfo, GBC.std().insets(0, 20, 0, 0));
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132 | p2.add(GBC.glue(1, 0), GBC.eol().fill(GridBagConstraints.HORIZONTAL));
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133 | this.add(p2, GBC.eol().fill(GridBagConstraints.HORIZONTAL));
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134 | }
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135 |
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136 | /**
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137 | * Remember the current input
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138 | */
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139 | public void rememberHistory() {
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140 | cbInput.addCurrentItemToHistory();
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141 | cbInput.getModel().prefs().save("projection.custom.value.history");
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142 | }
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143 | }
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144 |
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145 | /**
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146 | * A dialog for the available parameters of the custom projection
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147 | */
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148 | public static class ParameterInfoDialog extends ExtendedDialog {
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149 |
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150 | /**
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151 | * Constructs a new {@code ParameterInfoDialog}.
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152 | */
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153 | public ParameterInfoDialog() {
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154 | super(null, tr("Parameter information"), new String[] {tr("Close")}, false);
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155 | setContent(build());
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156 | }
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157 |
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158 | private static JComponent build() {
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159 | StringBuilder s = new StringBuilder(1024);
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160 | s.append("<b>+proj=...</b> - <i>").append(tr("Projection name"))
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161 | .append("</i><br> ").append(tr("Supported values:")).append(' ')
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162 | .append(Projections.listProjs())
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163 | .append("<br><b>+lat_0=..., +lat_1=..., +lat_2=...</b> - <i>").append(tr("Projection parameters"))
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164 | .append("</i><br><b>+x_0=..., +y_0=...</b> - <i>").append(tr("False easting and false northing"))
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165 | .append("</i><br><b>+lon_0=...</b> - <i>").append(tr("Central meridian"))
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166 | .append("</i><br><b>+k_0=...</b> - <i>").append(tr("Scaling factor"))
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167 | .append("</i><br><b>+ellps=...</b> - <i>").append(tr("Ellipsoid name"))
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168 | .append("</i><br> ").append(tr("Supported values:")).append(' ')
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169 | .append(Projections.listEllipsoids())
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170 | .append("<br><b>+a=..., +b=..., +rf=..., +f=..., +es=...</b> - <i>").append(tr("Ellipsoid parameters"))
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171 | .append("</i><br><b>+datum=...</b> - <i>").append(tr("Datum name"))
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172 | .append("</i><br> ").append(tr("Supported values:")).append(' ')
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173 | .append(Projections.listDatums())
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174 | .append("<br><b>+towgs84=...</b> - <i>").append(tr("3 or 7 term datum transform parameters"))
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175 | .append("</i><br><b>+nadgrids=...</b> - <i>").append(tr("NTv2 grid file"))
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176 | .append("</i><br> ").append(tr("Built-in:")).append(' ')
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177 | .append(Projections.listNadgrids())
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178 | .append("<br><b>+bounds=</b>minlon,minlat,maxlon,maxlat - <i>").append(tr("Projection bounds (in degrees)"))
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179 | .append("</i><br><b>+wmssrs=</b>EPSG:123456 - <i>").append(tr("Sets the SRS=... parameter in the WMS request"))
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180 | .append("</i><br>");
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181 |
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182 | return new HtmlPanel(s.toString());
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183 | }
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184 | }
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185 |
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186 | @Override
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187 | public void setPreferences(Collection<String> args) {
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188 | if (!Utils.isEmpty(args)) {
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189 | pref = args.iterator().next();
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190 | }
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191 | }
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192 |
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193 | @Override
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194 | public Projection getProjection() {
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195 | return new CustomProjection(pref);
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196 | }
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197 |
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198 | @Override
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199 | public String getCurrentCode() {
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200 | // not needed - getProjection() is overridden
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201 | throw new UnsupportedOperationException();
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202 | }
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203 |
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204 | @Override
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205 | public String getProjectionName() {
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206 | // not needed - getProjection() is overridden
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207 | throw new UnsupportedOperationException();
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208 | }
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209 |
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210 | @Override
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211 | public JPanel getPreferencePanel(ActionListener listener) {
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212 | return new PreferencePanel(pref, listener);
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213 | }
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214 |
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215 | @Override
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216 | public Collection<String> getPreferences(JPanel panel) {
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217 | if (!(panel instanceof PreferencePanel)) {
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218 | throw new IllegalArgumentException("Unsupported panel: "+panel);
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219 | }
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220 | PreferencePanel prefPanel = (PreferencePanel) panel;
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221 | String savePreferences = prefPanel.cbInput.getEditorComponent().getText();
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222 | prefPanel.rememberHistory();
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223 | return Collections.singleton(savePreferences);
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224 | }
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225 |
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226 | @Override
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227 | public String[] allCodes() {
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228 | return new String[0];
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229 | }
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230 |
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231 | @Override
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232 | public Collection<String> getPreferencesFromCode(String code) {
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233 | return null;
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234 | }
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235 |
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236 | @Override
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237 | public boolean showProjectionCode() {
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238 | return false;
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239 | }
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240 |
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241 | @Override
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242 | public boolean showProjectionName() {
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243 | return false;
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244 | }
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245 | }
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